ESTRO 2024 - Abstract Book

S4735

Physics - Quality assurance and auditing

ESTRO 2024

Conclusion:

The tests performed in this study revealed an accuracy within 1 mm when an 8 cm off-axis target was treated using our platform. A CTV-PTV margin of 1 mm is currently used for planning single-isocenter multitarget SRS.

Keywords: Winston-Lutz, Off-axis, End-to-End

24

Digital Poster

Experience on patient- specific QA for HyperArc stereotatic plans

Juan-Francisco Calvo-Ortega 1,2 , Sandra Moragues-Femenía 1 , Coral Laosa-Bello 1 , Miquel Pozo-Massó 1 , Antonia Zamora-Pérez 1 1 Hospital Quirónsalud Barcelona, Radiation Oncology, Barcelona, Spain. 2 Hospital Quirónsalud Málaga, Radiation Oncology, Málaga, Spain

Purpose/Objective:

To report our experience on patient-specific QA (PSQA) of HyperArc stereotactic radiosurgery (SRS) plans using Monte Carlo and 3D measurement methods.